This abbreviation is RO.
After ISO 639-1 (alpha-2 code): ro After ISO 639-2 (alpha-3 code): rum
RO
ro
The abbreviation of numéro is no.
RO is Romania.
It is not a change but a three letter alternative imposed by ISO and unfortunately accepted by some idiots from Romania: The two letters code is RO: after ISO 3166-1 alpha 2. The three letters code is ROU: after ISO 3166-1 alpha 3.
Country Abbreviation for Nassau, Bahamas
The country with the abbreviation MOR is Morocco.
should the abbreviation for country club be c.c.?
Austria.
Austria.